Die Casting Blog for Cast-Parts Aluminum Die Cast Parts and Zinc Die Cast Parts manufacturing and cast parts production

August 10, 2013

Why Draft Angle in Die Casting is a must

Filed under: Cast Parts — Tags: , — admin @ 1:04 am

Why Draft Angle in Die Casting is a must. In the process of die casting, having the right draft angle incorporated in die casting molds is a very important thing. It is one of the factors that will affect the total quality of the die casting parts produced.

What is Die Casting Draft angle?

Did you ever notice that the sides of a cupcake pan are sloped in a certain angle towards the center of the pan? If you inspect the pan, the sides are not straight but rather slanted at a certain degree. With that as an example, draft angle in general sense, is an angle integrated into the wall of a mold, making the opening of the cavity a tad wider than its base.

Die Casting draft angle is the angle that is incorporated into the walls of the die casting mold allowing the die casting part to be easily ejected from the mold.

Is draft angle in die casting tooling really necessary?

The rationalization behind the need for draft angels on die casting molds lies from the very nature of the die casting process – injection molding process -and also, the inevitable issue of mold shrinkage.

Die casting manufacturing process for metal parts is done by forcing the molten metal into a mold cavity. These mold cavities are made with hardened tools that have been machined to the net shape of the die casting parts.

The injection of the molten metal into the mold cavities is a high-pressure process. The high pressure forces the molten metal into intimate contact with the walls inside of the mold cavities. The high-pressure packing of the surface of the mold’s cavities makes it hard to get the die casting part out of the mold. In short, the ejection process will be compromised.

With the above explanation, it is clear that draft angle is indeed a must.

Cast-Parts Die Castings Blog gives information on how to get a Aluminum and Zinc Die Castings. If you are looking for Die Casting Parts look at this website.

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August 3, 2013

A Comparison: Sand Casting and Die Casting

Filed under: Aluminum Casting Parts,Cast Parts,Die Casting Company — Tags: , — admin @ 1:56 am

A Comparison: Sand Casting and Die Casting. Have you ever wonder about sand casting or die casting advantages? Did you ever ask yourself which casting process is better, despite the fact that both of them are good choices? If you have, then you must continue reading. The following are brief comparisons between the sand casting and the die casting manufacturing process that could help you answer your question.

Cost. Sand Casting is a method of manufacturing metal cast parts which makes use of sand as the mold while die casting, on other hand, makes use of hardened steel. When it comes to mold, it is pretty obvious that die casting is more expensive. Also, molds used for die casting only have about 100,000 cycle time, while the sand use in sand casting could be used more than twice as the molds used in die casting.

Initial expenses for sand casting is relatively inexpensive compared to the start up cost of die casting. However, when it comes to periodic labor cost, sand casting requires greater outflow of resources compared to die casting. Because of this, die casting is still generally considered as the cheaper one between the two.

Startup time. Start up time for sand casting only takes a few days while die casting requires several weeks.

Product size. Considering the nature of the process of sand casting, the range of the size of the metal parts that it can produce is practically limitless. As for die casting, its range runs from 30 grams to 10 kg only.

Design Complexity/Detail. Because of the fact that die casting has lower dimensional tolerance, the design complexity and detail accuracy of die cast metal parts produced are on a higher level than metal parts produce by sand casting process.

Cast-Parts Die Castings Blog gives information on how to get a Aluminum and Zinc Die Castings. If you are looking for Die Casting Parts look at this website.

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July 27, 2013

Sand Casting Compared to Die Casting

Filed under: Cast Parts,Die Casting Company,Die Casting Tooling — Tags: , — admin @ 1:41 am

Sand Casting Compared to Die Casting. If you are wondering which is better- sand casting or die casting – then this is the right article for you. Whether you want to know about sand casting or die casting advantages or a comparison of both, this article will certainly help you.

In order to have a clearer view of what is better, you must first know what these two methods are all about. Sand casting, as its name implies, forms its mold with the help of a pattern or model which is pressed into a kind of sand mixture. Die casting on the other hand uses hardened tool steel as a mold in making its cast parts.

Both processes are good choices of metal casting method. It just depends on what kind of metal parts you plan to cast or produce. For large hollow metal parts like automotive cylinder heads, sand casting is usually used. For smaller and more detailed metal parts, die casting is the more ideal process. The casting weight range for sand casting is actually unlimited while die casting ranges from 1oz up to 20 pounds.

When it comes to mass producing parts, which requires intricate details and smooth surface, die casting is the more preferred method. It is because die casting process has a dimensional tolerance of as low as .001 inch, while sand casting has a minimum of .010 inches.

Money-wise, initial expenses for die casting are more expensive, especially the die cast tooling than the initial costs used for of sand casting. However, in the long run, die casting has a lot cheaper labor cost compared to the labor cost incurred by sand casting.

Cast-Parts Die Castings Blog gives information on how to get a Aluminum and Zinc Die Castings. If you are looking for Die Casting Parts look at this website.

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July 20, 2013

Reasons Why Die Cast Parts are still better

Filed under: Aluminum Casting Parts,Cast Parts,Die Casting Company — Tags: , — admin @ 1:33 am

Reasons Why Die Cast Parts are still better. Have you ever wondered which is better: Die Casting Parts or Plastic parts? Which is more conducive and practical among the two? Which is more durable and reliable? It is actually a good question since in the past years plastic products keep on appearing, in rather escalating manner, in the shelves of supermarkets.

Advantages of Plastic over Metal

• Resistance to Corrosion. Plastic molded products are more resistant to different kinds of weather than products made up of metal. Plastic material can be designed to withstand many climatic conditions and it also does not corrode.

• Economical. Plastic products are simply cheaper.

• Strength. Plastic parts can be designed so it would be impact and dent resistant.

• Chemical Resistance. The fact that plastic is impermeable to a lot of chemical compounds, it is an ideal substance for a wide variety of solution tanks.

Advantages of Die Cast Parts over Plastic

• Durability and Resistance to Corrosion. Since die cast parts are made out of non ferrous metals, the possibility of the parts to corrode is minimal. Also, metal products are basically more durable than the plastic molded products. Because of that die cast parts, could accommodate harsher temperatures and more varied working condition.

• Environment – friendly. It is a given fact that plastic products are more economical than die cast parts. However, in the longer run, it is actually more impractical to use disposable products than those products that could last for a longer time.

Also, plastic takes a couple of hundred years before it will fully biodegrade. Although, plastics products are also being recycled, compared to die cast parts, the latter is still more sustainable.

Cast-Parts Die Castings Blog gives information on how to get a Aluminum and Zinc Die Castings. If you are looking for Die Casting Parts look at this website.

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July 13, 2013

A Comparison: Die Cast Parts or Plastic Parts

Filed under: Cast Parts,Die Casting Company — Tags: , — admin @ 1:25 am

A Comparison: Die Cast Parts or Plastic Parts. Within the past decade, plastic molded products have become abundant in the market. More and more plastic products are being produced as substitute to metal products such as faucet, door knobs, and chair braces. Die casting manufacturing industry is facing a rival that produces products that do not corrode or rust. However, the question is, which is really better, Die Casting Parts or Plastic Parts?

Durability

Die cast parts are basically stronger compared to their plastic counterparts. In cases that a material is needed to be built thin and yet durable, die cast parts are preferable. Also, die casting parts can withstand a wider range of temperature than their plastic counterparts, allowing them to be more ideal in harsh working environments with extreme temperatures.

Moreover, since, die casting manufacturers use non ferrous type of die casting alloys for high pressure die casting like aluminum, zinc and magnesium, the argument that die cast parts are most likely to corrode easily pushed out of the picture.

Environmental Issue

When it comes to issues with environment, plastic products do not bode very well. If you wonder how long plastic products biodegrade, then the answer is: it takes at least few hundred years. This implies that old and non usable plastic products are going to flood the landfills. Comparing these plastic products to die cast parts, the latter is actually made of recycled material. Approximately ninety five percent of metal used in die cast parts production is recycled from salvaged parts. With this, metal is proven to be a more sustainable material that could be used not only once but many times over.

Cast-Parts Die Castings Blog gives information on how to get a Aluminum and Zinc Die Castings. If you are looking for Die Casting Parts look at this website.

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